Crockpot Carne Asada Nachos

Name: Crockpot Carne Asada Nachos
Cook time: 6 h
Total time: 6 h
Cuisine: Mexican
Ingredients: 1.5 pound flank steak; 1 teaspoon salt; 1 teaspoon pepper; 1 teaspoon smoked paprika; 1 teaspoon onion powder; 1/2 teaspoon garlic powder; 1/4 teaspoon chili powder; 1/4 teaspoon ground cumin; 2 tablespoons olive oil; 8 ounces of your favorite beer, (I used a leftover summer ale); 1 ripe avocado; 1 lime, (juiced); 1/2 cup fresh cilantro, (torn); 1 bag of tortilla chips; 8 ounces of monterey jack cheese, (freshly grated); 1/2 cup sweet corn, (cooked or fresh); 1/2 pint grape tomatoes, (halved); 1/4 cup sour cream or greek yogurt